Study on Early-Age Elastic Modulus of FRC Using Electrical Resistivity and Resonance Frequency

The correlation between surface electrical resistivity and modulus of elasticity of fiber-reinforced concrete (FRC) was studied within early ages in this study as a novel nondestructive method for predicting the modulus of elasticity of FRC. In addition to the relationship of the two quantities, the...

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Bibliographic Details
Published inInternational journal of concrete structures and materials Vol. 16; no. 1; pp. 53 - 13
Main Authors Castillo, Daniel, Hedjazi, Saman, Kabir, Ehsanul
Format Journal Article
LanguageEnglish
Published Singapore Springer Nature Singapore 01.12.2022
Springer
Springer Nature B.V
SpringerOpen
Subjects
Age
Building Materials
Coefficient of variation
Concrete
Design
early age properties
Electrical resistivity
Engineering
Fiber reinforced concretes
Fiber volume fraction
Fractions
Hydration
Mathematical analysis
Mechanical properties
modulus of elasticity
NDT
Nondestructive testing
Ratios
Reinforced concrete
Reinforcing steels
resonance frequencies
Resonance testing
Solid Mechanics
Statistical analysis
Storage modulus
Structural Materials
Ultrasonic testing
Water-cement ratio
early age properties
modulus of elasticity
resonance frequencies
electrical resistivity
NDT
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Summary:The correlation between surface electrical resistivity and modulus of elasticity of fiber-reinforced concrete (FRC) was studied within early ages in this study as a novel nondestructive method for predicting the modulus of elasticity of FRC. In addition to the relationship of the two quantities, the influence of various discrete fibers such as glass, nylon, polypropylene, and steel on the early age properties of FRC was investigated. Twenty-one FRC mixes were designed and tested; including four fiber types, three different fiber volume fractions for each fiber type, and three different water-to-cement ratios for all the different mixes. The surface electrical resistivity meter and resonance testing gauge were used to measure each specimen’s surface electrical resistivity and modulus of elasticity. Early-age dynamic modulus of FRC may be predicted using the mechanical properties and dimension of the fiber, according to proposed mathematical calculations. Statistical analysis was performed on the experimental results and the results acquired by the proposed equations, to examine and proof the accuracy of the proposed equations. The acceptable coefficient of variation of 5–9 percent confirmed the good agreement between the measured and predicted values.
ISSN:1976-0485
2234-1315
DOI:10.1186/s40069-022-00540-w